package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.JwtClaimsConstant;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import com.sky.utils.ThreadLocalUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;
import java.util.Map;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        password=DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

   public void save(EmployeeDTO employeeDTO){
       Employee employee = new Employee();
       BeanUtils.copyProperties(employeeDTO,employee);
       employee.setCreateTime(LocalDateTime.now());
       employee.setUpdateTime(LocalDateTime.now());
       employee.setStatus(StatusConstant.ENABLE);
       employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
       //从线程中取出用户ID
       Map<String,Object> clams = ThreadLocalUtil.get();   //知道Map的类型 用 Map<String,Object>接受
//       Long userId= (Long) clams.get(JwtClaimsConstant.EMP_ID); //知道其id的类型，强转为 Long
       Long userId=  Long.valueOf(clams.get(JwtClaimsConstant.EMP_ID).toString());
       employee.setCreateUser(userId);
       employee.setUpdateUser(userId);
       employeeMapper.insert(employee);
   }

    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO){
        //开启分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        List<Employee> list = employeeMapper.list(employeePageQueryDTO);
        //page中提供的方法，强转后可以获得PageHelper分页查询后，得到的总记录条数和当前页数据
        Page<Employee> page = (Page<Employee>) list;

       return  new PageResult(page.getTotal(),page.getResult());
    }

  public void startOrStop(Integer status,Long id){
      Employee employee = employeeMapper.selectById(id);
      //employee.setStatus(employee.getStatus()==0? 0 :1);
      employee.setStatus(status);
      employee.setUpdateTime(LocalDateTime.now());
     Map<String,Object>  clams = ThreadLocalUtil.get();
      //Long userId=  clams.get(JwtClaimsConstant.EMP_ID);
      Long userId=  Long.valueOf(clams.get(JwtClaimsConstant.EMP_ID).toString());
      employee.setUpdateUser(userId);
      employeeMapper.update(employee);

  }

    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.selectById(id);
        employee.setPassword("*****");  //对返回的密码进行加密措施
        return employee;

    }
    public void update(EmployeeDTO employeeDTO){
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        employee.setUpdateTime(LocalDateTime.now());
        Map<String,Object>  clams = ThreadLocalUtil.get();
        employee.setUpdateUser(Long.valueOf(clams.get(JwtClaimsConstant.EMP_ID).toString()));
        employeeMapper.update(employee);
    }

}
